Transcript for Iraq Asks for American Help in Fight Against Militant Uprising

to, beginning with the growing war in Iraq. Mounting threats to our homeland. The government there asking for the U.S. Military to come back. They want American against Al Qaeda militants, marching towards Baghdad right now. Terry Moran is in northern Iraq with all of the latest. Good morning, terry. Reporter: Iraq right now is gripped by desperation and fear. And the Iraqi government, which three years ago, told U.S. Forces to get out of this country, is now asking for American help again. They want air power, bombing of the radical islamists who are now taking town after town across Iraq. Like a fierce desert wind, the jihadists advance. The Iraqi army is in full retreat. Simply melting away. The victorious fighters are the Al qaeda-founded group, the I.S.I.S. And they are fueled with ruthlessness and religious zeal. They call this the blessed invasion. The lightning speed of their conquest has shocked the government here and in Washington. They've now taken mosul, Iraq's second-largest city. Tikrit, saddam hussein's hometown. Baiji, an Iraqi oil refinery town. And today, they are taking direct aim at Baghdad. They are well-equipped and disciplined. And they have weapons abandoned by the Iraqi army. And $500 million in cash seized from local banks. Chaos reigns here. Wounded children. Families with nowhere to go. And fear they will bomb their home. They will kill all of the people here. Reporter: People here say it took just an hour for the Iraqi army to desert the city of mosul, dropping their weapons, stripping off their uniforms and fleeing. American taxpayers paid $14 billion to train and equip that army. George? Terry, U.S. Officials believe this Al Qaeda army has become the single-greatest terrorist threat to the United States. I was struck by the quote of one U.S. Official to "The wall Street journal." It says, when you look at this intelligence, it makes you want to kill yourself. Reporter: It is a frightening prospect. Not just for the people in Iraq and this region, but for the world and American interests. They are ruthless. They are well-funded. Well-organized. And they have a gigantic patch of territory across two countries to launch further attacks.

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